Isaiah 54.13
Septuagint

kai pantaV touV uiouV sou didaktouV qeou

New Testament - John 6.45

kai esontai panteV didaktoi qeou

Septuagint

And I will cause all thy sons to be taught of God

New Testament

And they shall all be taught of God

Masoretic Text

And all thy children shall be taught of Jehovah

Comments:  The NT, LXX and the MT agree.